    $(document).ajaxSend(function(event, xhr, settings) {  
        function getCookie(name) {  
            var cookieValue = null;  
            if (document.cookie && document.cookie != '') {  
                var cookies = document.cookie.split(';');  
                for (var i = 0; i < cookies.length; i++) {  
                    var cookie = jQuery.trim(cookies[i]);  
                    // Does this cookie string begin with the name we want?  
                    if (cookie.substring(0, name.length + 1) == (name + '=')) {  
                        cookieValue = decodeURIComponent(cookie.substring(name.length + 1));  
                        break;  
                    }  
                }  
            }  
            return cookieValue;  
        }  
        function sameOrigin(url) {  
            // url could be relative or scheme relative or absolute  
            var host = document.location.host; // host + port  
            var protocol = document.location.protocol;  
            var sr_origin = '//' + host;  
            var origin = protocol + sr_origin;  
            // Allow absolute or scheme relative URLs to same origin  
            return (url == origin || url.slice(0, origin.length + 1) == origin + '/') ||  
                (url == sr_origin || url.slice(0, sr_origin.length + 1) == sr_origin + '/') ||  
                // or any other URL that isn't scheme relative or absolute i.e relative.  
                !(/^(\/\/|http:|https:).*/.test(url));  
        }  
        function safeMethod(method) {  
            return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));  
        }  
      
        if (!safeMethod(settings.type) && sameOrigin(settings.url)) {  
            xhr.setRequestHeader("X-CSRFToken", getCookie('csrftoken'));  
        }  
    });  